1158560 has 48 divisors (see below), whose sum is σ = 2952936. Its totient is φ = 427008.

The previous prime is 1158551. The next prime is 1158569. The reversal of 1158560 is 658511.

It is an interprime number because it is at equal distance from previous prime (1158551) and next prime (1158569).

It can be written as a sum of positive squares in 4 ways, for example, as 446224 + 712336 = 668^2 + 844^2 .

It is a super-2 number, since 2×1158560² = 2684522547200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1802 + ... + 2358.

2^1158560 is an apocalyptic number.

1158560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1158560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1476468).

1158560 is an abundant number, since it is smaller than the sum of its proper divisors (1794376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1158560 is a wasteful number, since it uses less digits than its factorization.

1158560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585 (or 577 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 1158560 is about 1076.3642506141. The cubic root of 1158560 is about 105.0282614780.

The spelling of 1158560 in words is "one million, one hundred fifty-eight thousand, five hundred sixty".